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Source Map Parser MCP

Parse JavaScript error stack traces back to original source code using source maps

Connector by MasonChow · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 2
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Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/masonchow-source-map-parser-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Parse JavaScript error stack traces back to original source code using source maps

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
2 read · 0 write · 0 delete · 1 not yet classified
Secrets
None asked for
Install scripts
Not scanned yet
Runs as
Node.js package

Tools by what they do 3

Read from the source code; the running server may list different tools.

Read 2 · Look things up without changing anything.

  • lookup_context
  • parse_stack

Not yet classified 1 · We could not tell from the name and description.

  • unpack_sources

Secrets and settings it asks for

Other settings (environment variables or headers).

  • SOURCE_MAP_PARSER_CONTEXT_OFFSET_LINE
  • SOURCE_MAP_PARSER_RESOURCE_CACHE_MAX_SIZE

Tools (3)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • lookup_context

    # Lookup Source Code Context This tool looks up original source code context for a specific line and column position in compiled/minified code. ## Parameters: - **line**: The line number in the compiled code (1-based) - **column**: The column number in the compiled code - **sourceMapUrl**: The URL of the source map file - **contextLines** (optional): Number of context lines to include before and after the target line (default: 5) ## Returns: - A JSON object containing the source code context snippet with file path, target line info, and surrounding context lines - Retur…

  • parse_stack

    # Parse Error Stack Trace This tool allows you to parse error stack traces by providing the following: - A downloadable source map URL. - The line and column numbers from the stack trace. The tool will map the provided stack trace information to the corresponding source code location using the source map. It also supports fetching additional context lines around the error location for better debugging. ## Parameters: - **stacks**: An array of stack trace objects, each containing: - **line**: The line number in the stack trace. - **column**: The column number in the …

  • unpack_sources

    # Unpack Source Map Sources This tool extracts all source files and their content from a source map. ## Parameters: - **sourceMapUrl**: The URL of the source map file to unpack ## Returns: - A JSON object containing: - **sources**: Object with source file paths as keys and their content as values - **sourceRoot**: The source root path from the source map - **file**: The original file name - **totalSources**: Total number of source files found

Signals

Stars
2
Forks
3
Open issues
0
Last commit
Sep 28, 2025 (1 year ago)
Last release
Sep 28, 2025 (1 year ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.MasonChow/source-map-parser-mcp
Version
1.3.2
Auth
No auth
Packages
npm source-map-parser-mcp
License
MIT
Repository
github.com/MasonChow/source-map-parser-mcp
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registrygithub-graphql
Cite this page

Source Map Parser MCP. Agent Mart. https://agentmart.dev/connectors/masonchow-source-map-parser-mcp (last updated 2026-10-24)